My dog ate old Chinese food with onions. Should my dog see a vet?

A few pieces of onion ingested by a dog of Mochi's size will likely cause nothing worse than some minor stomach upset, if anything at all. She would need to eat 2 or 3 med/large onions in order to be at risk of serious toxicity. If she develops vomiting or diarrhea but continues to behave normally, you can fast her for 24 hours then feed a bland diet in small, frequent amounts until symptoms resolve. Transition slowly to her regular diet afterwards.

Thank you for reaching out to Petco Pet Education Center, formerly Petcoach with your question about GG. The toxic amount of onion in dogs is 100 grams (about the size of a medium onion) per 20kg of a dog's weight to cause toxic effects, which means that a 45 pound dog would have to eat a medium to large onion to experience dangerous toxicity levels. Luckily in this case, two onion rings will not contain that much onion. There is a concern about the fattiness of the onion rings, as they are fried, and fried and fatty foods can cause pancreatitis in dogs. I would monitor her for vomiting, diarrhea, abdominal pain, a hunched up appearance, vomiting undigested food, and lethargy. If you see any of those signs, have her seen by a vet immediately. Hopefully, however, she will be just fine, and I don't think in this case, you need to do anything. Don't induce vomiting, and there's no need to take her into a vet unless you see any of the signs I just mentioned. I hope this helps!

It sounds like you did the right thing for Loki so far. If you ever have questions about what is safe to give him or your other pets, please feel free to ask us here on Petco Pet Education Center, formerly Petcoach! That is what we are here for. I'm sure your vet's office would not mind to answer questions if you call them either. Keep an eye on Loki for the next few days because, as you already know, onions can be very dangerous in these little guys. If you notice that Loki seems more lethargic or tired than normal, take him to your vet right away. Once there your vet can perform a lab test (a CBC) to make sure the onions did not cause a problem.

Oh no, that was naughty of Piper! If she just got into the trash within the past two hours, you can take her into a vet immediately to have vomiting induced to get the onions out of her system to prevent any toxicity from occurring. Otherwise, you can monitor her for now. There likely isn't enough onion in these rings to cause toxic symptoms, but to be safe if you see any lethargy, weakness, ataxia, pale gums, hyper salivation, vomiting, diarrhea, or bloody urine, I would have Piper seen by a vet immediately.

It is unlikely that there was enough onion present to cause a problem, but eating that much pizza will likely cause some gastroenteritis (inflammation of the stomach and intestines) which could lead to vomiting and diarrhea. He could also develop pancreatitis. If he starts vomiting, having diarrhea, isn't wanting to eat, or seems lethargic, please take him to your vet for treatment. In the meantime, withhold for at least 12 hours, then offer small amounts of. a bland diet such as boiled chicken and white rice for the next couple of days. Onions will cause oxidative damage to the red blood cells which can result in anemia. If the onions are going to be an issue, it will be a few days before you would see this, and generally would present as decreased appetite and lethargy. If those symptoms are noted, get him in to your vet for bloodwork. Again, I doubt there was enough onion present to be a problem. as generally its a relatively large amount that has to be ingested to cause a clinical problem. thanks for asking Petco Pet Education Center, formerly Petcoach!

It typically takes ingestion of about 0.5% of your pet's body weight of onion to be at risk of onion related toxicity. This calculates out to be approximately 0.15 lbs, or around 2 ounces. Unless your pet ate anything close to that amount or more, it is not recommended to do decontamination for him. With a piece of [onion](https://www.petcoach.co/canigive/dog/onions) that only weighs a few grams I would not be concerned. Just monitor him for the next couple of days for any GI upset, lethargy, panting or pale gums. And if he gets a hold of any more you can always contact the [Pet Poison Helpline](https://www.petpoisonhelpline.com/). There is a charge associated with this call.

Hello and thank you for contacting Petco Pet Education Center, formerly Petcoach. Onion in toxic to dogs but the toxic dose is fairly high. Sadie would have to eat more than a half of a large onion (or a whole normal size onion) to get into any trouble. She may show mild signs of stomach upset, like a bout of vomit or loose stools but there should not be any more concerning symptoms.